Full list of all 27 Bad Piggies achievements worth 235 gamerscore. It takes around 8-10 hours to unlock all of the achievements in the base game.
The base game contains 20 achievements worth 200 Gamerscore, and there is 1 DLC pack containing 7 achievements worth 35 Gamerscore.
Transported King Pig successfully 50 times
Episode 5 completed with 3 stars on all levels
Episode 5 completed
Episode 3 completed with 3 stars on all levels
Gained 3 stars in all blue levels in episode 3
Discovered 20 explorer remains
Episode 3 completed
Used a Super Magnet to collect all cakes and a star box in 1 run
Popped 100 balloons
Broke off 1000 parts
Started a transport with 25 or more parts
Used a Turbo Charge power-up
Used a Super Glue power-up
Used a Super Mechanic
Gained 3 stars in all blue levels in episode 1
Episode 1 completed with 3 stars on all levels
Episode 1 completed
Finished 50 levels without breaking anything
Traveled 1000 miles in a transport
Checked the credits
Collected the Alley-oop star in Little Pig Adventure sandbox.
Broke a bridge.
Used the gearbox in a contraption.
Drop into a certain pit in Little Pig Adventure sandbox.
Collect the star in the labyrinth in Little Pig Adventure sandbox.
Collect all the stars from Little Pig Adventure.
Collect a star with chain reaction in Little Pig Adventure sandbox.